X300 and advice for batteries

[cesaer]

my 8 month old x300s battery is not doing well. I really need good batteries to support my fieldwork. Any advice?

1, shop lenovo stuff? mucho $$$
2, any good batteries on ebay?

[jcvjcvjcvjcv]

The best you can get is a lucky deal on genuine Lenovo batteries on eBay.

I wouldn't touch the $30 China stuff!

[cesaer]

Anyone that have been using ??? and can give advice?

my goal is to extend the battery for at least half working day.


x300 bay battery - and where can you find them at resonable price?
1, http://www5.pc.ibm.com/no/products.nsf/ ... site=esgno

2, ebay battery like this one? (3600mah)
http://cgi.ebay.com/New-Battery-For-IBM ... 286.c0.m14

3, ebay 4000mah like this one:
http://cgi.ebay.com/4000mAh-Battery-for ... 286.c0.m14

4,

[maenpo]

AFAIK, battery is covered by warranty for 1 year. You can find it here[1], page B-7, you can also find it in tabook too.

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[1] http://download.lenovo.com/ibmdl/pub/pc ... 02_rev.pdf

[Esben]

I've both the 6-cell battery and the bay battery. By completely draining both batteries untill the computer shuts off, I'm now back to 99 % capacity for both batteries (quite weird, don't know why...)

This means I have a total battery capacity of 67Wt. When disabling wireless and turning the display brightness to lowest, idle power draw is around 7W, in theory enough for 9½ hours life. I can bring the computer without AC adapter to the university, and with some lectures and lunch, keep it running from 9-17, sometimes with wireless and okay brightness.

If the price of the bay battery was not so absurd, I'd recommend it right away. I bought the laptop second hand, and had it included, so I didn't have to swallow the cost. My friend has an X300 as well, with only the 6-cell battery. If you find somewhere they can be bought inexpensively, please give a notice

My battery is 16 months old. I'd recommend you try creating a profile in battery manager that doesn't hibernate or put the system to sleep when battery level reaches x %. Then let the computer run out of power, so that it turns itself off. I think that's partially what caused my battery capacity to increase from 82% to 97% and now to 99 %.